I don't think the pink will turn out as well unless you are really really good with painting the interior. It will leave far less room for error and I doubt you will like the results. Adding bright contrasting colors is always tough to pull off.

If you really like pink, you might get away with doing it somewhere else, maybe the headliner or your brake calipers. Something not in your normal sight line...

^Agreed^

Also, pink on black is going to take a lot of work to get to look right and have the pink pop and not look dull and dark.